I cannot compare it with another product, but I believe it is helping my body to produce collagen. When I broke my wrist, one or more medical professionals were surprised how fast it healed.
3M N95 Particulate Respirator Face Mask 3M 8511
Oct 27, 2020
3M N95 Mask With Valve Still Restricts Breathing
The valve opening that allows air to bypass the filter is too small so the mask still restricts my breathing. Other than that, it's may filter better than an inexpensive filter and as I recall, fits my face better.
I would say that the cells are working well so far---much better than the ones I replaced. Hopefully, they will keep working good. The tabs were well insulated, are nice and long and easy to solder to.